Canon LBP 3370, Service Manual, Page: 48 / 114

Chapter 2
2-20
F-2-24
2.7.1.3 Overview
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LBP3370
The video controller receives print information from external devices (e.g., host computer) through interface cables.
Such print information contains commands used to exchange printer status and unique information as well as PDL data.
The PDL data is converted into a display list by the display list generation circuit, and turned into bitmap data for output to the DC controller. A check may be made
on the printer status using an external device.
F-2-25
2.7.1.4 Outline of Operation by Block
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LBP3370
F-2-26
T-2-3
No. Name Description
IC2
IC3
IC1
J5
J6
IC4
J2
5 1
1
26 1
13
J1
1
6
J4
28
1
7 1
J3
J7
1
2
DC controller PCB
PDL data
Display List
Bitmap
Bitmap
PCL printer
driver
Display list
generation
circui
Video controller PCB
Bit map conversion
Compression/
decompression
circuit
ASIC (IC1009)
EEPROM(IC9) CPU(IC1010)
ROM(IC16)
I/F(IC1100)
USB
SDRAM
(IC1,2,3,4)